The annual dividend rates for a random sample of 16 companies in three different

Statistics
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The annual dividend rates for a random sample of 16 companies in three different industries, utilities, banking, and insurance were recorded. The ANOVA comparing the mean annual dividend rate among three industries rejected the null hypoth that the dividend rates were equal. The Mean Square Error (MSE) was 3.36. The following table summarized the results:

no sample uti=5 ban=5 ins=6

mean ann div rate uti= 11.62 ban= 15.4 ins= 17.4

no diff

diff of 5

util annual rate less than banking

bank less than uti

Jun 7th, 2015

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Jun 7th, 2015

Based on the comparison between the mean annual dividend rate for companies in utilities and banking, the 95% confidence interval shows an interval of 1.28 to 6.28 for the difference. This result indicates that 

Jun 7th, 2015

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